Fire-tile doorframe



April '10, 1928. 1,665,555

M. LIPTAK 'FIRE TILE DOOR FRAME Filed April 10. 1924 2 Sheets-Sheet 1 April 10, 1928."

1,665,555 M. LIPTAK FIRE TILE DOOR FRAME Filed April 10. 1924 v 2 Sheets-Sheet 2 lijzial Patented Apr. 10, 1928.

UNITED STATES rieE.

F nn-TILE DOQBFRAME. 7

Application filed April 10,

My invention relates to 'masonry walls, and more particularly to furnace walls, and provides an important improvement in themasonry .door frames thereof. Generally stated, the invention consists of the novel construct-ion, combinations and arrangements of parts hereinafter described and definedin the claims.

The so-called ,door frame might be designated as a window frame, because it in cludes not only-the door jambs and arch or transverse upper portion, but also a sill forming member, However, it isherein des ignated as a door frame because it will usually be employed as the framework of an opening normally closed by a hinged door. It has hitherto; been the general, practice to construct these masonry door frames of commercial brick, either, common brick, fire brick, or both, and the work incident to laying them up has been very considerable and the expense, consequently, has been quite great. a e;

My invention provides a ,tile'door frame made up of specially constructed tile, preferably fire tile, having such relation to each other thatthey may be very quickly laid and when laid will produce not only a highly efficient but a very'neat or even ornamental appearing door frame. Moreover, the structure is such that, in a furnace wall, the inner tiles, which are subjectto the greatest heat and, hence. morequickly damaged or destroyed than the outer tiles, may be very.

' quickly and easily and at small expense renewed from time to time without requiring the removal of the good orunda-maged tile In the accompanying drawings, wherein like characters indicate like'parts throughout the several views, I have illustrated'my invention. especially designed for application in afurnace Wall to'aiford whatis generally knownas an inspection door, but it will, of course, be understood thatthe invention may be more generally applied and employed.- i r i Referring to the drawings:' i Fig. 1 is an elevation showing a portion of affurnace wall and a. completed fire tile door frame designed in accord ance with my invention, looking atthe sameffromthe' inner side of the furnace; J v

I Fig.2 is a perspective showing the door frame with some ofthe tile removed to better illustrate the actual construction; J Figure 3 is a horizontal section taken ap- 1924. SeriaI No. teases.

proximately onthe line 33 of Fig. 1; and ig. i is avertical section taken approximately on the line t-4e'of Fig. l.

The [furnace wall shown is made up of outer bricks 5 and inner bricks 6, the former being common brick and the latter being firebrick. The door frame comprises a shell,

doorjambs and an arch, each of which is:

made up of a pluralityof' tiles, andwhich members hear an important relation to each other, as will presently "appear.

Thesill is made up of outer tiles .7 and 8- and inner tiles '8" and 8; the doorjambs are made up of outer tiles 9 and inner tiles 9*, and the arch is made up of outer tiles 11, 12 and 13 and inner tllGSdilf, 12 and 13. Here it is important to note that the inside surfaces, towit: the surfacesof all of the said frame-forming blocks, are beveled toward the interior of the, furnace, so that the door opening. flares inwardly and, hence, has larger size at the inner surface of the wall than at the outer surface of thewall. This isimportant because it ,permits arperson at the exterior of'thc Wall, looking through the door opening, to look obliquely upward, obliquely. downwardand obliquely at both sides and, hence, to inspect a much greater area of the'interior of the furnace than would be possible'through a dooropening having the constant size of the door opening at the outer side of the wall.

The end or terminal s il l blocks 8 and 8 are approximately L-shaped incross section, but the interior L'surfaces thereof are beveled so that thecross sections decrease in a direction from the outer toward the inner surface-of the complete wall. The intermediate sill blocks 7 and 7 are rectangular in cross section. It is, however, important to note that the sillblocks 8 at the outer sides of the door frame, are offset so that they break jointswith'the outer surfaces of the sill blocks .8, asbest shown in Fig. 2. It should also be noted that all of the sill blocks 7 and 8 at the bottom of the frame,

are set below the sill blocks 7 and 8, as best shown in Fig. i. The door jamb-forming blocks 9"and Qfare tapered so that the door opening flares inwardly,as above stated, and it should be noted thatthe tiles 9 at the outer sides of the fra me, are offset from and wardly beyond the tiles 8 and that the tiles 9 project outwardly beyond the tiles 8.

The arch portion of the door frame is built up on the door jamb made up of the tiles 9 and 9 The abutments or terminal blocks 11 and 11, usually designated as skewbacks, are seated, respectively,on the upper tiles 9 and 9 and project outward beyond the said respective blocks, as. best shown in Figs. 1 and 2. The arched tiles .12 and 13 are wedge-shaped or tapered, so

asto form the desired arch. The central or key tiles 13 and 13 are, 111 this preferred arrangement, provided on opposite sldes with offset shoulders 14 that widen the upper.

portions of said blocks.

The arch blocks 12 and 12 are provided on one side with inset and 'on theother side with offset shoulders, (see Figs; .1 .and 2), thatcause them to form lapped joints with the shoulders Hand with the inner oblique portions of the skewbacks or arch abutments 11; Moreover, the arch blocks 12 and 13 areraised higher than the blocks 12 and 13 and at" their extremities are provided with projecting ends 12 and 13,.(see.Figs. 2 and 4), that overlap the inner extremities of the ..blocks 12 and 13, respectively. These overlapping joints very securely support the blocks 12 and13 and prevent said blocks from settling in the arch.

By reference particularly toFigs. and

l 2, it will benoted that, by projecting the jamb-forming blocks 9 and 9 beyond the blocks 8 andS", the said projecting portions are caused to rest upon certain of the bricks '-of the masonry 6, thereby supporting the frame maybe cheaply made and, as is evident, may be laid up very rapidly. Of course, theinner blocks 7*, 8, 9, 11?, 12 and 13 will be subjected to much greater heat than the correspondingouter blocks 7, 8, 9, 11 12 and 13, and all: or any of. the, said inner blocks may be readily replaced when burned away, without disturbing the said outer blocks. Also,more or less of the fire bricks 6 of the main body ofthe wall may be replaced, but this does not constitute part of the present invention.

Not only may thls improved fire tile door frame or doorway lining be installed at less cost than the ordinary fire brick structures,

but it has a better appearance and is more efficient; and, of course, from what has been said, it follows that it ma be more readily repaired atrloweiwcosttian the ordinary fire brick structure.

Any suitable form of door may be used inconnection with this masonry door frame, but I have shown an ordlnary castmetal door 14 hinged at 15 to a cast rectangular frame 16 suitably secured to the outer face of said door frame.

What I claim is:

A door frame, comprising inner and outer jamb-forming blocks, and supplemental inner and outer arch-forming blocks, said inner arch-forming blocksfhav ing terminal extensions resting and slidable upon the outer arch-forming blocks. 2 A door frame,compris ng supplemental inner and outer jamb-forming blocks, and

supleniental inner and outer arch-forming blocks, saidarch-forming blocks having terminal blocks that project laterally beyond the upper jamb-forming blocks, and the inher arch-forming blocks having terminal ex tensions which rest and may s'lideupon the outer arch-forming blocks.

3. A tile door frame made up of sill-form'- 7 ing blocks, jamb-forming blocks and archforming blocks constructed and arranged to fit together to form a complete frame, said jamb-forming blocks projecting laterally] beyond the sill and the terminal blocks: of the arch projecting laterally beyond said jarnbforming blocks. V

p 4. In a masonry wall, a tile door frame made up of supplemental inner and outer supplemental sill-forming blocks, supplemental inner and outer jamb-formingblocks, and supplemental'inner'and outer arch-forming'blocks constructed and arranged to fit together to form a complete frame, said jamb-forming blocks projecting laterall into" the wall beyond said sill-forming locks, and the terminal blocks of said arch projecting laterally into the Wall beyond said jambforming blocks.

5. In amasonry wall, a tile door frame made up of supplemental inner and outer sill-forming blocks, supplemental inner and outer jamb-forming blocks, and supplemental inner and outer arch-forming blocks constructed and arranged to fit together to form a complete frame, said jamb-forming blocks projecting laterally into the wall beyond said sill-forming blocks, and the terminal blocks of said arch projectinglaten ally into the wall beyond said jamb forms ing blocks, the exposed inner surfaces of said blocks being beveled toward the inner face of the wall sothat given an inward flare. p

6. In a masonry wall, a tile door frame made up of supplemental inner and outer sill-forming blocks, supplemental innerand outer jamb-forming blocks, and supplementhe door opening is tal inner and outer arch-forming blocks constructed and arranged to fit together to form a complete frame, the inner arch-forming blocks overlapping adjacent ends of the corresponding outer arch-forming blocks and extending vertically about the same.

7. In a masonry wall, a tile door frame made up of supplemental inner and outer sill-forming blocks, supplementalinner and 8. In a masonry Wall, a tile door frame madeup of supplemental inner and outer sill-forming blocks, supplemental inner and outer janib-forming blocks, and supplemental inner and outer arch-forming blocks constructed and arranged tofittogether to form a complete frame, and which terminal sillforming blocks are approximately L-shaped in cross section, the exposed inner surfaces of said blocks being beveled toward the inner face of said wall so that the door open ing is given an inward flare. I

In testimony whereof I affix my signature.

MICHAEL LIPTAK. 

